Question

CIST 1305
Unit 07 Drop Box Assignment
The Assignment
ONLY ONE FILE may be turned in for the assignment. If you make a mistake and need to turn
in your work again, you may do so. I will only grade the latest file you turn in. The older ones
will be ignored. For instruction on How To do assignments and create the file see the "How To
Do Homework" document under the "Start Here" button.
You will create a word processing document and create a psuedocode solution to the following
problem.
The code in the pseudocode on the following page contains two methods, main() and
retrieveProdName(num n). The main() method calls the retrieveProdName() method using a
number read from the users input at the keyboard. This psudocode design was implemented
in Java, and deployed to the customer’s machines. But occasionally the program throws an
InvalidPIDException and crashes. This is very disturbing to the customer, and they are
demanding a fix. Your job is fix this problem.
First study the code to see how it work and determine where the exception can be thrown.
Then copy the main() pseudocode (no need to copy the retrieveProdName() method as you
will not be changing it) and apply a fix. The fix will consist of your using try and catch blocks
to catch the exception. When the exception is caught print out an "Invalid Product Code,
please try again" message, and then allow the program to continue normally.
What to turn in
At the top of your document make sure you put your name, date, and "CIST 1305 Unit 07
Lab". You then will enter your fixed main() method only in your document, no need to write
out the other method, you did not change it. You can save your document for your own use
in any format you like. Name your paper "Unit07_Lab_<your first initial><your last
name>.xxx". Where xxx is the file extension your word processor uses. So Tom Swift (who
used Word) would name his file Unit01_Lab_tswift.docx.
But, create a PDF document to turn in. So Tom's document to turn in would be named
Unit07_Lab_tswift.pdf. All modern word processors can create a PDF file by use of a "Save
As ..." dialog or an "Export..." dialog usually found under the "File" menu. If you are not sure
how to export a PDF Google it to find out. If that does not help post to our HELP discussion
board.

Answer 1

Java ShortcutsRes Copy import java.io.*; 4 class Test /* I have designed this function to generate a Exception to test main method is handling the exception or not. 7 8 You can remove this method if need to submit in assignment*/I //Declaring retrieveProdName method to throw a exception for us static void retrieveProdName (int num) throws Exception 9 10 throw new Exception("demo"); 12 13 14 15 16 17 public static void main (String[] args) try /We suspect that this block of statement can throw exception */ retrieveProdName (5); catch (Exception e) { 19- 20 21 /* This is a generic Exception handler which means it can handle all the exceptions. */ System.out.println("Invalid Product Code, please try again"); If want to print that exception you can use following statement System.out.println("Exception occured is: " e); 23 24 25 26 27 System.out.println("Continuing normal flow..."); Input Goes Here Copy > Run Run+URL (Generates URL as well) Time(sec): 0.08 Memory(MB): 60.5273 Output Copy Invalid Product Code, please try again Continuing normal flow...

import java.util.*;
import java.lang.*;
import java.io.*;

class Test
{
   /* I have designed this function to generate a Exception
   to test main method is handling the exception or not.
   You can remove this method if need to submit in assignment*/
  
   //Declaring retrieveProdName method to throw a exception for us
   static void retrieveProdName(int num) throws Exception{
       throw new Exception("demo");
   }
  
   public static void main (String[] args)
   {
       try {
   /* We suspect that this block of statement can throw exception */
  
   retrieveProdName(5);
  
       }
   catch (Exception e) {
   /* This is a generic Exception handler which means it can handle all the exceptions. */
  
   System.out.println("Invalid Product Code, please try again");
     
       /*
   If want to print that exception you can use following statement
   System.out.println("Exception occured is: "+ e);
   */
     
}   
       System.out.println("Continuing normal flow...");
   }
}